Dump-car.



S. H. HUNT.

DUMP'CAR.

APPLICATION FILED APR. 24, 19:5.

Patented June 27, 1916.

3 SHEETS-SHEET l- THE COLUMBIA PLANDGRAPH co.. \vAsluNu'roN. n. c.

S. H. HUNT.

DUMP CAR.

APPLICATION FILED APR.24,1915- Patented June 27, 1916,

3 SHEETS-SHEET 2- 'rn: coulamm PLANOURAPH co.. wAsmNaToN, o. c

S. H. HUNT.

DUMP CAR. APPLICATION FILED APR. 24 l9l5.

1 1 88,787 Patented June 27, 1916.

3 SHEETS-SHEET 3.

mean sira'rns SYLVESTER H. HUNT, OF IRONWOOD, MICHIGAN.

DUMP-CAR.

Application filed April 24, 1915.

To all whom it may concern Be it known that I, SYLvEsTnR H. HUNT, acitizen of the United States, residing at Ironwood, in the county ofGogebic and State of Michigan, have invented new and useful Improvementsin Dump-Cars, of which the following is a specification.

The present invention relates more particularly to that class of carshaving movable walls, which when released, permit the load to gravitatefrom the car, and the primary object is to provide a car of thischaracter, having a verylow center of gravity, a relatively largecapacity per lineal foot of track, and so constructed that it will dump,clean itself, and close in practically one operation.

An embodiment of the invention that is at present considered thepreferable one, is illus rated in the accompanying drawings, whereinFigure 1 is an end elevation of the car. Fig. 2 is a side elevation ofthe same. Fig. 3 is a cross sectional view showing the walls in theirclosed position. Fig. 4 is a similar view with the walls open. Fig. 5 isa horizontal sectional view. Fig. 6 is a detail horizontal sectionalview and plan of the lever-holding means. Fig. 7 is a detail perspectiveView, illustrating one of the guide ways for the central. bottomsection. Fig.

8 is a view partially in elevation and partially in section of amodified controlling means. Fig. 9 is a view at right angles to Fig. 8.

Similar reference numerals designate cor responding parts in all thefigures of the drawings.

In the embodiment illustrated, a suitable under frame or truck 10 isprovided that is carried by wheels 11, and on this frame or truck ismounted the body which constitutes the subject-matter of the invention.This body is preferably, though not necessarily, made of sheet metal,and comprises fixed end walls 12 connected by side walls. The

side walls comprise upper sections 13 which are suitably fixed to theend walls and lower sections 14; hinged, as shown at 15, at their upperedges to the lower edges of the sections 13 and being capable ofswinging outwardly, as will be clear by reference to Fig.

4;; The upper side wall sections 13 are suit'-' ably reinforced by anglebars 16,] and the end walls are also reinforced by similar angle bars17. 1

Specification of Letters Patent.

Patented Jane 2?, 1916.

Serial No. 23,626.

The truck 10 includes a pair of longitudinal sills 18, and pivotedbetween their inner and outer edges to these sills, are downwardlyswinging bottom sections 19 suitably reinforced by angle bars shown at20. The hinges 21 for these bottom sections are located nearer the inneredges than the outer edges of said sections 19. Other upwardly movablebottom sections 22 are employed, which in effect constitute a partitionlongitudinally in the lower portion of the car. The lower edges of thesections 22 are hinged as illustrated at 23, to the inner edges of thedownwardly movable sections 19,while their upper edges are hingedtogether as shown at 24:. The hinged pintle 25 of the upper hinges is inthe form of a rod extending the length of the sections 22 and projectingbeyond the same, the projecting ends being slidably mounted in verticalguide slots 26 formed in the end walls 12. As shown more particularly inFigs. 1 and 7 the slots 26 are covered by plates 27 mounted on andmovable with the pintle 25, the plates operating between guides 28secured to the outer faces of the end walls 1.2. Extendinglongitudinally through the lower central portion of the car between theupwardly movable bottom sections 22, is a rock shaft 29 journaled in theend walls and carrying on its projecting ends oppositely disposed crankarms 30. These crank arms are respectively connected by links 31 withthe side wall sections 1 1. At one end of the car a hand lever 32 isfixed to the rock shaft 29, and its upper portion operates in theguideway formed by a guide bracket or strip 33 secured to said end wall.The mechanism is such that when the lever 32 is at one end of theguideway, as shown in Fig. 1, the side sections 1 1 will be in theirclosed position and the lever is locked in this position by a latchshown more particularly in Fig. 6. This latch comprises a spring member34.- secured to the guide strip 33 and extending therethrough across theguideway in the path of the lever 32. A. bracket secured to the guidestrip 33, has journaled thereon a cam 36 which operates behind therounded offset end 37 of the latch This cam is provided with a suitablehandle 38, and it will be evident that if the handle 38 is turned to theright,

the cam will operate to withdraw the latch 3% from behind the lever 32,so that the same may be operated. On the other hand, when said lever isswung to the position shown in Figs. 1 and 6, the latch will be forcedoutwardly and permit the free passage of said lever. The movement of thecam is limited by a pin 39 passing through a slot 40 formed in the cam.

-As shown more particularly in Figs. 8 and 4, the side walls when intheir closed position, constitute supports for the downwardly movablesections 19 of the bottom walls, and for this purpose angle brackets orbars 41 are secured to the lower margins of the side wall sections 14,said brackets or bars having inturned flanges that engage beneath theouter margins of the bottom sections 19, when said sections are elevatedand the side wall sections are in their closed positions.

The operation of the device, it is believed, will be apparent byreference to Fig. 3. When the bottom and side movable wall sections areclosed, the body of the car constitutes an effective container, in whichthe material to be carried and dumped, will be held. When it is desiredto dump the car,-

all that is necessary is to swing the lever 32 from the position shownin Fig. 1 to the left. This results in positively swinging the sidesections 14 outwardly, and thereby the bottom sections 19 are released.When so released, the weight of the material upon the outer portionsofthe bottom sections 19 will overbalance the weight upon the innerportions and the resistance against the sections 22, and the bottomsections will swing downwardly to open position, while the sections 22will be elevated and slightly spread apart. The result is that the loadwill be dislodged and will gravitate downwardly between the sections ltand 19, being thereby discharged from the car. As soon as the bottom isrelieved of the weight of the load the combined weight of the sections22 and the inner portions of the sections 19 will overbalance the outerportions of the sections 19 and the bottom will return to its normal orclosed position. Therefore as soon as the lever 32 is swung back to theposition shown in Fig. 1, the car is in closed position ready to receiveanother load.

In case the dumping operation is to be automatically performed, thelever 32 is supplantedby suitable mechanism, as for example, that shownin Figs. 8 and 9. A portion of one of the end walls of the car isillustrated at 12, and the rock shaft is designated 29 On the projectingend of this rock shaft is located a disk 32 notched, as illustrated at33? to receive the tooth 34: of a locking lever 35. The said lever ispivoted at one end, as shown at 36, while its other end rests upon avertical push rod 37 slidably mounted on the car and carrying at itslower end a roller 38. Arranged in the path of the roller 38 at thepoint where the car is to be dumped is a suitable trip block 39 It willbe evident that with this construction, assuming the car loaded andlocked in its closed position, as said car passes the trip block 39",the roller 38 will ride thereupon, thereby elevating the push rod 37 andthe lever 35*. As soon as the tooth 3 1 is disen, gaged from the notch33 and the rock shaft 29 is released, it will be evident therefore fromwhat has gone before, that the various movable wall sections being thusreleased, the weight will automatically actuate the same and the loadwill be discharged, the parts automatically returning to their closedposition after such discharge.

From the foregoing, it is thought that the construction, operation andmany advantages of the herein described invention will be apparent tothose skilled in the art, without further description, and it will beunderstood that various changes in the size, shape, proportion and minordetails of construction, may be resorted to without departing from thespirit or sacrificing any of the advantages of the invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is r 1. In a dump car, oppositedownwardly swinging bottom sections, central upstanding sections pivotedto the inner portions of the bottom sections and to each other,

said bottom sectionsbeing so pivoted that.

their outer sides willgravitate downwardly under a load and will be'overbalanced when unloaded to permit their automatic return, oppositeside walls capable of outward swinging movement independently of thebottom sections and having means for detachably engaging and holding thebottom sections against dumping when said side walls are closed, andmeans for locking the side walls in closed position.

2. In a dump car, opposite downwardly swinging bottom sections, centralupstanding sections pivotedto the inner portions of the bottom sectionsand to each other, said bottom sections being so pivoted that theirouter sides will gravitate downwardly under a load and will beoverbalanced when unloaded to permit their automatic return, oppositeside walls capable of outward swinging movement independently of thebottom sections and having means for detachably engaging and holding thebottom sections against dumping when said side walls are closed, andmeans mounted on the car and connected to both side walls for lockingthe side walls in closed position.

3. In a dump car, end walls, sidewalls comprising upper fixed sectionsconnecting the end walls, and lower outwardly swinging sections hingedto the] fixed sections, means connected to the swinging sections forholding them in closedposition, and downwardly swinging bottom sectionsiia higher than the side sections, said end walls having vertical slotsbelow their upper edges, guiding means for the central sections slidablein said slots, and devices carried by the guiding means and movabletherewith for closing the slots.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

SYLVESTER I-I. HUNT. Witnesses J. A. SHEA, S. A. NAGEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

